EP0988889B1 - Matériau granulaire ayant des propriétés d'adsorption, d'absorption, de chemisorption ou catalytique lié à l'aide de polymère - Google Patents

Matériau granulaire ayant des propriétés d'adsorption, d'absorption, de chemisorption ou catalytique lié à l'aide de polymère Download PDF

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Publication number
EP0988889B1
EP0988889B1 EP98118114A EP98118114A EP0988889B1 EP 0988889 B1 EP0988889 B1 EP 0988889B1 EP 98118114 A EP98118114 A EP 98118114A EP 98118114 A EP98118114 A EP 98118114A EP 0988889 B1 EP0988889 B1 EP 0988889B1
Authority
EP
European Patent Office
Prior art keywords
chemisorptive
absorptive
active material
catalytically active
polymer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98118114A
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German (de)
English (en)
Other versions
EP0988889A1 (fr
Inventor
Rudolf Dr. Rer. Nat. Dipl.-Chem. Nastke
Gerald Dr. Habil. Dipl.-Chem. Rafler
Helmut Dipl.-Phys. Remde
Thomas Dr. Dipl.-Chem. Krügerke
Gabriele Stadermann
Jannett Dipl.-Chem. Kohls
Martin Dipl.-Ing. Kurth
Dieter Dr. Dipl.-Chem. Lubkoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
MSA Auer GmbH
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Auergesellschaft GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19714350A priority Critical patent/DE19714350B4/de
Priority to ZA988616A priority patent/ZA988616B/xx
Application filed by Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV, Auergesellschaft GmbH filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Priority to EP98118114A priority patent/EP0988889B1/fr
Priority to AT98118114T priority patent/ATE287292T1/de
Publication of EP0988889A1 publication Critical patent/EP0988889A1/fr
Application granted granted Critical
Publication of EP0988889B1 publication Critical patent/EP0988889B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • B01J37/0219—Coating the coating containing organic compounds

Definitions

  • the invention relates to a polymer bound granular off, ad, chemisorptive or catalytically acting material as well as a method for Production of moldings from this material.
  • the basic principle of such inventions is the Embedded activated carbon in the polymer body or the formation of a carbon matrix within the Activated carbon itself (DE A1 41 40 455).
  • DE U1 91 15 610 are also Foams, preferably foamed polyurethanes, in which the activated carbons are stored, described.
  • EP A1 04 92 081 is a mixture from cellulose, polyvinyl alcohol and activated carbon to one Hexagon body with selectable size of the hollow body shaped.
  • the product shows a good suitability for Adsorption of air pollutants, but the Do not satisfy capacities.
  • DE A1 34 43 900 and DE C3 24 00 827 include carbon impregnated fabrics and nonwovens. at These solutions are based on special polyurethanes. e.g. Polyurethane fluoride and polytetrafluoroethylene urethane, used.
  • the Romanian patent RO 10 40 21 includes also a porous polyurethane support body, in whose pores contain granular activated carbon.
  • the granules by impregnation with a Solution of 15 to 20% activated carbon powder and 15% adhesive produced, from which it is apparent that here too can not satisfy the capacities.
  • thermoplastic tacky polyurethanes are technologically difficult and their use is also characterized by an enormous cost factor.
  • melt of the polymer which accounts for a share of usually 20% by mass of the product, there are extensive coverages of the surface of the adsorber, which leads to large capacity losses and to increase the volume resistivity.
  • good spray of the thermoplastic polyurethane on the active product also leads to a significant coverage of the active surface and thus to capacity losses.
  • From DE A1 195 14 887 is a solution to Production of an adsorbent flexible filter sheet on the basis of a flexible fabric in which, for fixing the adsorber particles, et al Polyolefins indicated, but not specified are.
  • the solution is due to the textile carrier material not suitable for production arbitrary shaped molding and also not comparable with the solution according to the invention, without support materials gets along.
  • the solution according to DE A1 42 38 142 contains porous bodies with adsorbing properties, wherein called as binders polyolefins, but are not detailed.
  • the adsorber particles and binder particles have comparable sizes, so that this solution with the inventive Solution due to different segregation problems not comparable.
  • Object of the present invention is the Development of a polymer-bound granular ad, off, chemisorptive or catalytically active material, which is capable of operating at elevated temperatures, the specific surface of the active material not reducing, porous and sorptive acting To form foam body, wherein an adhesion promoter effect only during the mixing and processing phase to come to fruition, as well as a procedure for the production of moldings from this material.
  • the aim of the invention was the development of a ad, ab, chemisorptive or catalytically active Material and a technological process for production of moldings thereof, whereby the disadvantages overcome the prior art and at at least equivalent mechanical stability higher capacity, easier processing and a Minimization of costs can be achieved.
  • thermoplastic polymer with low surface spray on the active material and a suitable binder has been found, whereby the best possible homogeneous distribution of granular thermoplastic polymers in the active Material is guaranteed, the adhesion of the polymer particles at the granular active material also over longer ones Maintaining processing periods and while the active surface of the active material possible is little wetted, the binder during the Hardening process in a chemically inert state passes over and the capacity of the active material as possible little restricts.
  • low-density polyethylene having a low melting point was found.
  • the polyethylene allows a firm mechanical bond between the grains of the active material, so that mechanical processing such as sawing, milling, drilling, etc. is also possible on the finished molded body.
  • the active surface of the active material is covered only minimally ( ⁇ 2% loss of the specific surface area).
  • Already 5% by mass of the polymer based on the mass of the active material cause sufficient for certain applications mechanical stability of the moldings.
  • the problem of efficient homogeneous distribution of the thermoplastic polymer in the active material over extended processing periods has been solved by the use of a fixing aid based on modified amino resin oligocondensates.
  • the adhesion to the active material with minimal wetting of the active material and an inert behavior after the thermal process provides a partially methanol-etherified and triethanolamine modified and neutralized melamine resin precondensate.
  • the amino resin precondensate crosslinks to a polymethylene melamine to form an open-celled foam-like polymer with good sorptive properties due to its high specific surface area (up to 300 m 2 / g).
  • the fixing aid or binder used contributes to the creation of sorbent surfaces.
  • adhesion promoter systems that do not contain organic solvents, ie that water-dilutable amino resin precondensates are used. If organic solvent-containing systems are used, an instantaneous adsorption of the solvent component on the active material is observed, and the adhesion promoter or fixing components become dry and, again with every further handling, said segregation phenomena occur. Water-dilutable systems, on the other hand, remain in the sticky, flowable state for at least 120 minutes and can therefore be processed well over these periods.
  • low-pressure polyethylene in particulate form eg M w 35,000, M N 7,700 having a melting point between 85 and 140 ° C. and a malamine resin precondensate were mixed in a suitable container with stirring technology to carry out experiments.
  • a granular activated carbon is added and the mixture is further thoroughly mixed until apparent homogeneity is achieved.
  • the mixture is then transferred to any generally forming work and pressed at low pressures and temperatures of about 100 ° C.
  • the foaming, crosslinking and curing of the amino resin component occurs, at the same time the polyethylene body melts to form polymer bridges between the individual granules of the activated carbon. After a short cooling phase and removal from the mold, the mechanically machinable shaped body is generated.
  • Activated carbon test bodies produced by the process weighing from 150 to 160 g gross, a height of about 40 mm and a diameter of 105 mm show the sorption behavior shown in the figure.
  • 7.5 g of polyethylene (fine-grained, mp. 90-95 ° C.) and 5 g of the amino resin precondensate according to Example 1 are intensively mixed in a suitable vessel with a stirring or shaking device, then 150 g of activated carbon are added and the mixture is further mixed until intense to achieve eye homogeneity and good flowability.
  • the product is transferred to a suitable tool, heated to 110 ° C and pressed at a pressure of 0.0125 to 0.25 bar / cm 2 .
  • moldings having a height of between 25 and 50 mm are obtained, depending on the applied pressure at a diameter of 105 mm.
  • Example 2 The procedure is as in Example 2, it However, 15 g of polyethylene are used.
  • Example 2 The procedure is carried out as in Example 2, it however, 15 g of amino resin precondensate are used.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Claims (9)

  1. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique, pouvant être obtenu par mélange d'un matériau à grain fin agissant de manière adsorbante, absorbante, chimisorbante ou catalytique avec un polyéthylène fusible à partie fine avec ajout d'un liant à base d'oligo-condensats de résine amino.
  2. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon la revendication 1, caractérisé en ce que le polyéthylène à partie fine présente une faible densité.
  3. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendications 1 et 2, caractérisé en ce que le polyéthylène à partie fine présente un domaine de fusion de 85 à 130°C, de préférence 90 à 115°C.
  4. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendications 1 à 3, caractérisé en ce que le polyéthylène à partie fine a une granulométrie de 1/10 à 1/2, de préférence 1/8 à 1/4, de la granulométrie du matériau granulaire agissant de manière adsorbante, absorbante, chimisorbante ou catalytique.
  5. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendications 1 à 4, caractérisé en ce que la proportion de polyéthylène par rapport au matériau granulaire agissant de manière adsorbante, absorbante, chimisorbante ou catalytique est 5 à 30 % en masse, de préférence 7 à 20 % en masse.
  6. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendications 1 à 5, caractérisé en ce que le liant est un précondensat de résine amino.
  7. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendications 1 à 6, caractérisé en ce que le liant est un précondensat de résine amino aqueux modifié avec de la triéthanolamine et du méthanol.
  8. Matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendications 1 à 7, caractérisé en ce que la proportion de liant est 10 à 80 % en masse, de préférence 30 à 50 % en masse, par rapport à la masse de polyéthylène employée.
  9. Procédé de production de pièces moulées à partir d'un matériau granulaire lié à un polymère agissant de manière adsorbante, absorbante, chimisorbante ou catalytique selon les revendication 1 à 8, caractérisé en ce que
    le polyéthylène fusible est mouillé intensivement avec l'oligo-condensat dans un récipient de mélange approprié,
    le matériau à grain fin agissant de manière adsorbante, absorbante, chimisorbante ou catalytique est ajouté,
    le mélange est agité de manière intensive,
    le mélange est amené par un système de transport approprié à une machine de mise en oeuvre et
    le mélange est injecté dans le moule à des températures de 90 à 180°C, de préférence 100 à 140°C et à des pressions de 0,0125 à 0,25 bar/cm2, de préférence 0,0225 à 0,0625 bar/cm2, pour obtenir une pièce moulée et,
    la pièce moulée est refroidie dans le moule et est finalement démoulée.
EP98118114A 1997-03-26 1998-09-24 Matériau granulaire ayant des propriétés d'adsorption, d'absorption, de chemisorption ou catalytique lié à l'aide de polymère Expired - Lifetime EP0988889B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19714350A DE19714350B4 (de) 1997-03-26 1997-03-26 Polymergebundenes körniges ad-, ab-, chemisorptiv oder katalytisch wirkendes Material und Verfahren zur Herstellung von Formkörpern aus diesem Material
ZA988616A ZA988616B (en) 1997-03-26 1998-09-21 Polymer-bonded granular adsorptive absorptive chemisorptive or catalytically active material and a process for producing molded bodies from this material
EP98118114A EP0988889B1 (fr) 1997-03-26 1998-09-24 Matériau granulaire ayant des propriétés d'adsorption, d'absorption, de chemisorption ou catalytique lié à l'aide de polymère
AT98118114T ATE287292T1 (de) 1998-09-24 1998-09-24 Polymergebundenes körniges ad-, ab-, chemisorptiv oder katalytisch wirkendes material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19714350A DE19714350B4 (de) 1997-03-26 1997-03-26 Polymergebundenes körniges ad-, ab-, chemisorptiv oder katalytisch wirkendes Material und Verfahren zur Herstellung von Formkörpern aus diesem Material
ZA988616A ZA988616B (en) 1997-03-26 1998-09-21 Polymer-bonded granular adsorptive absorptive chemisorptive or catalytically active material and a process for producing molded bodies from this material
EP98118114A EP0988889B1 (fr) 1997-03-26 1998-09-24 Matériau granulaire ayant des propriétés d'adsorption, d'absorption, de chemisorption ou catalytique lié à l'aide de polymère

Publications (2)

Publication Number Publication Date
EP0988889A1 EP0988889A1 (fr) 2000-03-29
EP0988889B1 true EP0988889B1 (fr) 2005-01-19

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EP98118114A Expired - Lifetime EP0988889B1 (fr) 1997-03-26 1998-09-24 Matériau granulaire ayant des propriétés d'adsorption, d'absorption, de chemisorption ou catalytique lié à l'aide de polymère

Country Status (3)

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EP (1) EP0988889B1 (fr)
DE (1) DE19714350B4 (fr)
ZA (1) ZA988616B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19714350B4 (de) * 1997-03-26 2004-12-02 Auergesellschaft Gmbh Polymergebundenes körniges ad-, ab-, chemisorptiv oder katalytisch wirkendes Material und Verfahren zur Herstellung von Formkörpern aus diesem Material
DE10021582B4 (de) * 2000-04-27 2004-07-15 Auergesellschaft Gmbh Verfahren und Vorrichtung zur Herstellung eines Atemschutzfilters
DE10117435B4 (de) * 2001-04-03 2006-01-12 Msa Auer Gmbh Verfahren zur Herstellung eines Filterkörpers
DE10304216B3 (de) * 2003-01-30 2004-10-14 Msa Auer Gmbh Atemschutzfilter und Verfahren zu dessen Herstellung
FI118036B (fi) * 2004-09-27 2007-06-15 Ms Eagle Oy Suodatinlaite

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715869A (en) * 1971-03-08 1973-02-13 American Filtrona Corp Filter
NL167609C (nl) * 1971-06-07 1982-01-18 Norit Nv Werkwijze voor het vervaardigen van poreuze voorwerpen van met een bindmiddel gebonden korrels actieve kool.
JPS5262189A (en) * 1975-11-17 1977-05-23 Japan Exlan Co Ltd Method of producing adsorbent
US4220553A (en) * 1978-11-20 1980-09-02 Parker-Hannifin Corporation Method of making filter block of an adsorbent and phenolic-polyurethane binder
CA1237116A (fr) * 1984-04-25 1988-05-24 Peter J. Degen Structures autostables a teneur de particules de carbone immobilisees, et leur production
EP0345381A3 (fr) * 1988-06-07 1991-04-10 The Clorox Company Filtre de liquide
US5389325A (en) * 1993-09-24 1995-02-14 Corning Incorporated Activated carbon bodies having phenolic resin binder
DE19515670A1 (de) * 1995-04-28 1996-10-31 Bluecher Hasso Von Baufolie mit adsorbierenden Eigenschaften
DE19714350B4 (de) * 1997-03-26 2004-12-02 Auergesellschaft Gmbh Polymergebundenes körniges ad-, ab-, chemisorptiv oder katalytisch wirkendes Material und Verfahren zur Herstellung von Formkörpern aus diesem Material

Also Published As

Publication number Publication date
EP0988889A1 (fr) 2000-03-29
DE19714350B4 (de) 2004-12-02
ZA988616B (en) 1999-06-30
DE19714350A1 (de) 1998-10-01

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